Document And Entity Information	6 Months Ended
	Jun. 30, 2012	Jul. 26, 2012
Entity Information [Line Items]
Entity Registrant Name	CLECO CORP
Entity Central Index Key	0001089819
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		60,714,810
Cleco Power [Member]
Entity Information [Line Items]
Entity Registrant Name	CLECO POWER LLC
Entity Central Index Key	0000018672
Entity Filer Category	Non-accelerated Filer